o1
by OpenAIopenai/o1
LLMCompare cannot run o1 yet.No route to this model is configured on this site yet. Its prices and parameters are listed below for reference.
See the models that can be run nowo1 at a glance
- Context length
- 200,000 tokens
- Maximum output
- 100,000 tokens
- Accepts
- Text, Image, File
- Returns
- Text
- Features
- JSON outputTool callingPrompt cachingImage input
- Reasoning effort levels
- Not supported
- Released
- 17 Dec 2024
- Knowledge cutoff
- 31 October 2023
Model facts synced from the OpenRouter model list on 21 Oct 2026.
o1 pricing by route
A route is the service LLMCompare calls to reach the model. o1 has 1 route. Prices are in US dollars.
| Route | On LLMCompare | Inputper 1M tokens | Outputper 1M tokens | Cache readper 1M tokens | Price verified on | Source |
|---|---|---|---|---|---|---|
| OpenRouterDefault | Not configured | $15.00 | $60.00 | $7.50 | openrouter.ai/openai/o1 |
The cost shown in an LLMCompare report is calculated from these prices as they were at the time of the run.
Cost calculator
Estimate what a batch of calls to o1 costs. The starting numbers are examples. Change them to match your task.
Part of the input tokens above, billed at the cache read price.
- Cost per call
- $0.045
- 54 credits
- Cost of 100 calls
- $4.50
- 5,400 credits
Calculated from the OpenRouter prices verified on 21 Oct 2026. Credits are the cost plus a 20% service fee, at $0.001 per credit, rounded up for each call, with a minimum of 1 per call. A real run is charged for the usage the provider reports.
Parameters you can set
These are the parameters LLMCompare can set when it calls the model through OpenRouter.
| Parameter | Type | Range or options | Default |
|---|---|---|---|
max_tokens | Integer | 1 to 100,000 | Provider default |
seed | Integer | -2,147,483,648 to 4,294,967,295 | Provider default |
response_format | One of | textjson_object | Provider default |
About o1
The latest and strongest model family from OpenAI, o1 is designed to spend more time thinking before responding. The o1 model series is trained with large-scale reinforcement learning to reason...
Description as published for this model. LLMCompare has not edited it.
Models to compare with o1
Text models from the same provider and models at the nearest price. The order is not a ranking.
| Add to comparison | Model | Context | Max output | Input priceper 1M tokens | Output priceper 1M tokens | Features | Released | On LLMCompare |
|---|---|---|---|---|---|---|---|---|
GPT-4OpenAIopenai/gpt-4 | 8.2k | 4.1k | $30.00 | $60.00 | JSONTools | No route yet | ||
GPT-6 AstraOpenAIopenai/gpt-6-astra | 1.05M | 128k | $10.00 | $50.00 | ReasoningJSONToolsCacheVision | No route yet | ||
GPT-6 Astra ProOpenAIopenai/gpt-6-astra-pro | 1.05M | 128k | $10.00 | $50.00 | ReasoningJSONToolsCacheVision | No route yet | ||
Claude Opus 4.1Anthropicanthropic/claude-opus-4.1 | 200k | 32k | $15.00 | $75.00 | ToolsCacheVision | No route yet | ||
Claude Fable 5.1Anthropicanthropic/claude-fable-5.1 | 1M | 128k | $10.00 | $50.00 | ReasoningJSONToolsCacheVision | No route yet | ||
Claude Fable 5Anthropicanthropic/claude-fable-5 | 1M | 128k | $10.00 | $50.00 | ReasoningJSONToolsCacheVision | No route yet |
Questions about o1
- How much does o1 cost?
- On the OpenRouter route, o1 costs $15.00 per 1 million input tokens and $60.00 per 1 million output tokens, in US dollars. Input tokens that o1 reads from the prompt cache cost $7.50 per 1 million tokens. LLMCompare verified this price on 21 Oct 2026.
- What is the context length of o1?
- o1 has a context length of 200,000 tokens and returns up to 100,000 output tokens in one call.
- What inputs does o1 accept?
- o1 accepts these inputs: Text, Image, File. o1 returns: Text.
- Can I test o1 on my own data?
- Not yet. LLMCompare lists the prices and parameters of o1, but no route to o1 is configured on LLMCompare, so it cannot be selected for an evaluation.